Using a Custom GDB Server¶

It's possible to create a debug configuration with a custom GDB server. Consider a couple of examples on this page.

Custom nSIM GDB Server¶

Follow Creating a Debug Configuration guide and create a simple "Hello, World!" project for running using nSIM. Then do right click on projects's name in Project Explorer and choose Debug As → Debug Configurations.... Then do right click on ARC C/C++ application and choose New Configuration. Select Gdbserver Settings tab and choose Custom GDB server option.

There are two fields available:

GDB server executable path stands for a path to GDB server executable. It's a path to nsimdrv (nsimdrv.exe in Windows) executable for this example.
GDB server command line arguments stands for a set of command line arguments for nsimdrv. For example:
```
-tcf /tools/mwdt_2023.03/nSIM/nSIM_64/etc/tcf/templates/hs48_full.tcf -on nsim_emt -gdb -port 49105
```
-tcf sets a TCF file, -on nsim_emt enables input/output interface and -gdb -port 49105 tells nSIM to start a GDB server on 49105 port.

nSIM Custom GDB Server Configuration

Custom OpenOCD GDB Server¶

A custom OpenOCD GDB server may be created the same way. Follow Getting OpenOCD and Using OpenOCD guides to find out how to get and run OpenOCD.

For example, if the full path of OpenOCD binary is /home/user/tools/openocd/bin/openocd, then here is command line arguments field value for EM Starter Kit 2.3:

-c "gdb_port 49105" -s /home/user/tools/share/openocd/scripts -f board/snps_em_sk_v2.3.cfg